MICRO BIO Flashcards
C perfringens toxin
lecithinase/phospholipase C/alpha toxin
enterococci are resistant to
aminoglycosides
PAS
whipple’s disease
india ink
cryptococcus
silver stain
- fungi
- legionella
- h. pylori
chocolate agar with factors V and X
H influenzae
Thayer-Martin media
N gonorrhea
N meningitis
Bordet-Gengou agar
B. Pertussis
Loffler’s media
C diptheriae
Lowenstein-Jensen agar
M tuberculosis
Eaton’s agar
M. pneumoniae
charcoal yeast extract agar with cysteine and iron
Legionella
Sabouraud’s agar
fungi
yellow pigment
S aureus
Protein A
S. Aureus
binds Fc portion of Ig
IgA Protease
S pneumo, Hi influ, Neisseria
colonize resp mucosa
M protein
GAS, prevent phagocytosis
Exotoxin
tetanus, botulism, diphtheria
Endotoxin
meningococcemia
sepsis by GNR
diptheria toxin
inactivates EF-2
pseudomonas Exotoxin A
inactivates elongation factor 2
Shiga-like toxin
EHEC
inactivates 60s ribosome by removing adenine from rRNA
Pertussis toxin
overactives adenylate cyclase/cAMP
Tetanospasmin
cleaves SNARE protein for NT release
Botulinum toxin
cleaves SNARE protein for NT release
gas gangrene
Clostridium perfringens
Streptolysin O
degrades cell membrane
TSST-1
S aureus
overhwelming release of IFN gamma and IL-2 which leads to shock
Exotoxin A (s. pyogenes)
overwhelimg release of IFN gamma and IL-2 which leads to shock
ENDOTOXIN
edema, nitric oxide, DIC/death, outer membrane, TNF alpha, O-antigen, eXtremely heat stable, IL-1, neutrophil chemotaxis
Bacterial transformation
s pneumonia
h influenza
neiserria
S. aureus properties
catalase +
coagulase +
S. epidermis properties
catalse +
coagulase -
novobiocin +
S. saprophyticus properties
catalase +
coagulase -
novobiocin -
Strept pneumo shape
lancet-shaped, GP diplococci
Streptococccus agalactiae causes
GBS –> sepsis/meningitis in babies
Enterococci cause
UTI
biliary tract infections
subacute endocarditis
C. diff toxins
Toxin A - enterotoxin
Toxin B - destroys cytoskeletal structure of enterocytes - pseudomembranous colitis
polypeptide capsule
anthrax
Cutaneous anthrax toxins
lethal factor and edema factor
Bacillus cereus
rice
actinomyces treatment
penicillin
nocardia treatment
sulfonamdies
Lepromatous Leprosy
diffusely over skin
humoral TH2 response
Tuberculoid Leprosy
hairless skin plaques
TH1 immune response
tinea versicolor
Malassezia
hypopigmented patches
spaghettia and meatball apperance
tinea versicolor/malassezia
treatment for tinea versicolor
topical miconazole
selenium sulfide
treatment for vaginal candida
topical azole
treatment for oral/esophageal candida
fluconazole
capsofungin
treatment for systemic candida
fluconzaole
capsofungin
amph B
aflatoxin
aspergillua
cryptococcus found in
pigeon, soil droppings
soap bubble lesions in brain
cryptococcus
PCP treatment
TMP-SMX
Sporothrix schenckii
cigar shaped
gardener’s disease
S. schenckii treatment
itraconazole or potassiume iodide
Giardia
comes from water
fatty stools
metronidazole
Entamoeba histolytica
bloody diarrhea
comes from water
metronidazole
Cryptosporidum
AIDs
comes from water
prevent with nitazoxanide
congenital toxoplasmosis
chorioretinitis
hydrocephalus
intracranial calcifications
toxoplasma treatment
sulfadizaine + pyrimethamine
naegleria fowleri
rapidly fatal MEitis
freshwater lakes
Trypanosoma brucei
african sleeping sickess
tseste fly
Plasmodium/malaria treatment
chloroquine, mefloquine
quinidine if life threatening
primaquine for vivax/ovale
Babesia
Ixodes tick
maltese cross
treat with atovaquone
trypanosoma cruzi
chagas disese
reduviid bug
dilated cardiomyopathy, emgacolon, megaesophagus
leishmani donovani
leishmaniasis from sandfly
enterobius vermicularis treatment
bendazoles
ascaris lumbricoides treatment
bendazoles
strongyloides treatment
ivermectin or albendazole
loa loa
swelling in skin, worm in conjunctiva
treat with diethylcarbamazine
wucheria bancrofti
elephantitasis
treat with eidethylcarbamazepine
taenia solium treatment
praziquantel
schistosoma
snails are host
squamous cell carcinoma o fbladder
schistosoma treatment
praziquantel
paragonimus westermani
from crab meat
lung inflammation
paragonimus westermani treatment
praziquantel
liver cysts
echinoccus granulosus
vit b12 def
diphyllobothrium latum
clonorchis sinensis
biliary tract dz, cholangiocarcinoma
Rotavirus
fatal diarrhea in children
echovirus
aseptic meningitis
Parainfluenza
croup
RSV
bronchiolitis in babies
treatment for RSV
ribavirin
Filoviruses
marbug/ebola, hemmorhhagic fever
bullet shaped virus
rabies
HBsAg
hep B infection
gp120 of HIV
attachment to CD4 T cell
gp41 of HIV
fusion and entry
pol of HIV
reverse transcriptase, aspartate protease, integrase
bloody diarrhea
campylobacter
watery diarrhea
ETEC
Meningitis not in new borns
S. pneumoniae
Neisseria
Enteroviruses
CSF bacteria
increased OP
increased PMNs
increased protein
decreased sugar
CSF Viral
Normal OP
increased lymphocytes
inormal/increased protein
normal sugar
CSF fungal/tb
increased OP
increased lymphoctes
increased protein
decreased sugar
rubella - neonatal
PDA, catarcts, deafness
CMV - neonatal
heairing loss, seizures, blueberry muffin rash
HSV2 neonatal
encepahlitis, herpetic lesions
Syphilis - neonatal
still birth
zanamivir, oseltamivir
inhibit neuroaminidase
influ A and B
ribavirin
RSV, chronic hep C
hemolytic anemia
Acyclovir
inhibits viral DNA polymerase
HSV, VZV
Ganciclovir
CMV
Foscarnet
CMV retinitis
resistant HSV
Cidofovir
CMV retinitis
resistant HSV
Protease inhibitors
“-navir”
NRTI
bind reverse transcriptase, terminate DNA chain
-udine
NNRTI
nevirapine, efavirenz, delaviridine
Reltegravir
integrase inhibitor
can cause hypercholesteremia
IFN alpha
chronic hep B and C
kaposi
IFN beta
MS
IFN gamma
NADPH oxidase def
malignant otitis externa
Pseudomonas
eosinophilia
Aspergillus
Picornaviridae
ss + RNA
Polio, Echo, Rhino, Coxsackie, HAV
Catalase Positive Organisms
S. aureus Nocardia Aspergillus Pseudomonas Serratia
Herpes virus budding
through host cell nuclear membrane
cryptococcus enters through
resp tracts/lungs
germ tubes
candida
TSI agar
producing: Salmonella, Proteus
non producing: Shigella
dextrans
produced by S. viridans
bind to fibrin
H flu capsule contains
ribose, ribitol, phosphate
treatment of H flu
ceftrixaxone
How does HBV help HDV?
coating of viral particles
HBV -type of virus
dsDNA
circular
contains DNA polymerase
mycobacterium - serpentine pattern
virulence/cord factor
Histoplasmosis morphology
ovoid cells within macrophages
Vibrio predisposing factor
achloryhdia
S. epidermis treatment
vancomycin or rifampin
Colonizng Aspergillus
old lung cavities, fungus balls
transformation
direct uptake of naked DNA from environment
S pneumonia, H flu, Neiserria
HIV properties
ssRNA, positive sense
reverse transcriptase
synthesize dsDNA from RNA
HIV structural genes
gag, pol, env
env
gp 120 and 41
glycosylated
gag
p27 and p7
p24, capsid protein
measles virus type
paramyoxvirus
rubella virus type
togavirus
bile soluble?
spneumonia
currant jelly sputum
klebsiella
black colonies on cystine-tellurite agar
diptheria
diptheriae treatment
diptheria antitoxin
Penicillin or Erythromycin
DPT vacine
function of conjugated diptheria toxoid in vaccines
increase immunogenicitiy
alcohols
disrupt cell membrane
denature proteins
H202
produces ROS
C. botulinium
inhibits AcH
flaccid paralysis
C. tetani
tetanic paralysis
inhibits glycine and GABA release
Neisseria spreads to
choroid plexus
watery diarrhea + pneumonia
legionella
oral thrush
think HIV
intranuclear and cytoplasmic inculsion bodies
CMV
Strongyloides Stercoralis
rhabditiform larve in stool
Strongyloids Stercoralis treatment
ivermectin or albendazole
integrin receptor
CMV
CR2/CD21 receptor
EBV
ICAM receptor (CD54)
Rhinovirus
Nicotinic Ach Receptor
Rabies Virus
diptheria exotoxin comes from
bacteriophage
Anti HBsAg
vaccination
what needs cholesterol to grow?
mycoplasma
biofilms/produce polysac matrix
S epidermis
Hep A type of Virus
picornavirus
Hep virus that causes mortality in pregnant women
Hep E
urease produced by
H pylori
cultured in 6.5% saline and bile
Enteroccoi
common after GU procedures
toxin mediated diarrhea
Vibrio, ETEC
Listeria
listerolysin O
production of cytokines
Rabies virus vaccine
killed vaccine
Amph B
binds ergosterol
Nystatin
binds ergosterol
Azoles
inhibit ergosterol synthesis
Flucystone
inhibits DNA/RNA synthesis
Capsofungin
inhibits cell wall synthesis
Terbafine
inhibits squalen opoxidase
Griseofulvin
interferes with microtubules
Fluoroquinolones
-floxacins (cipro)
30S inhibitors
aminoglycosides
tetracyclines
50 S inhibitors
chloramphenicol, clindamycin
eryhtomycin (macrolide)
linezolid